As the critical thinking movement has developed and corresponding research has been reported, a wide body of knowledge has developed around the skill of questioning as a means of developing critical thinking. Effective teachers from Socrates to the present day have sought to do more than transmit facts to students. Teachers have tried to help students develop skills in problem-solving, analyzing, evaluating and interpreting information. A typical teacher does this by asking hundreds of questions on a given day. The prevalence of this type of teaching has been found in reviews of research on teachers' questions which include studies going back to the turn of the century (Gall, 1984).
Thomas, B. B. (1992). How Can We Use What We Know About Questioning Skills to Develop Literate Thinkers?. Reading Horizons, 33 (1). Retrieved from http://scholarworks.wmich.edu/reading_horizons/vol33/iss1/2